Answer the following statements true (T) or false (F)
1. Some conifers shed their leaves seasonally.
2. The fossil record shows that angiosperms evolved directly from the Gnetophytes.
3. Incomplete flowers can be perfect flowers but imperfect flowers cannot be complete flowers.
4. Stamens and carpels are, in fact, modified sporangia-bearing leaves.
1. TRUE
2. FALSE
3. TRUE
4. TRUE
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What is a tuber?
A) an enlargement of an underground stem B) a root that's modified for nutrient storage C) the reproductive organ of a gymnosperm D) a modified leaf that serves as a nutrient storage structure
When ATP is split into ADP and Pi, what happens to the energy that gets released?
a. The energy is transferred to the target molecule via the transfer of Pi. b. The energy is directly transferred to the target molecule by an unknown mechanism. c. The two remaining phosphates acquire the energy that was present in the linkage of three phosphates. d. The energy dissipates in the form of heat.
Which of these hormones helps plants tolerate drought and cold?
A) Ethylene B) Abscisic acid C) Gibberellin D) Auxin E) Cytokinin
Match the nutritional category of microbe to its source of carbon and its energy source.
Photoautotroph A) Carbon dioxide and simple inorganic chemicals B) Organic carbon and metabolic conversion of the nutrients from other organisms C) Organic carbon and sunlight D) Carbon dioxide and sunlight